Results 211 to 220 of about 138,381 (238)
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Optical properties of silver island films in the attenuated-total-reflection geometry
Applied Optics, 1986The absorptances of 633-nm photons by silver island films formed on room temperature substrates were measured in an attenuated-total-reflection geometry by the photoacoustic method as a function of the angle of photon incidence. From the data obtained for s-polarized light ∊″, the effective dielectric function for the direction parallel to the film and
T, Inagaki +3 more
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Infrared Absorption Enhancement of C60 by Overlaying Thin Silver Island Films
Applied Spectroscopy, 2004Normal-incidence infrared absorption has been observed for silver overlaid C60 thin films formed on surface-oxidized Si(111) substrates as a function of the silver or C60 film thickness. The absorption spectra exhibit bands at 1429 and 1180 cm−1 due, respectively, to the infrared active T1u (4) and T1u (3) modes of C60 in multi-layers.
T, Wadayama +3 more
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Preparation and optical property of island silver films embedded in silica
SPIE Proceedings, 2000Island silver films (nanoclusters, quantum dots) embedded in silica are prepared on silicon wafers and glasses by sputtering. Atomic force microscope is used to characterize the morphology and distribution of silver nanoclusters, the size of nanoclusters varies from several ten to several hundred nanometers.
Zhenquan Lai +7 more
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Surface decoration of Langmuir-Blodgett films with evaporated silver islands
Thin Solid Films, 1989Abstract Silver was evaporated on Langmuir-Blodgett (LB) films of cadmium arachidate and phthalocyaninato-polysiloxane. Electron microscopy and UV-visible- near IR absorption spectroscopy show that the island formation and the sticking probability of silver depend on the thickness of the cadmium arachidate films.
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Percolation characters of sputtered and vaporized semi-continuous silver island films
Applied Surface Science, 2005Abstract A series of discontinuous and semi-continuous silver island films were prepared with sputtering technique and vaporizing method, respectively. The plasmon resonance absorption in visible region, critical percolation infrared transmittance and the fractal dimension of two types of samples were investigated.
Qu-Quan Wang +4 more
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Optical and structural characterization of silver islands films on glass substrates
Vacuum, 2008Metal islands films (MIFs) of Ag on glass substrates were fabricated by the e-beam evaporation process. The dependence of the surface plasmon (SP) absorption wavelength on the deposition mass thickness and substrate temperature was quantified. The structural and optical characterization of the MIFs, done by spectrometry, grazing incidence small angle X-
Dubček, Pavo +5 more
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Substrate Dependence of Surface Plasmon Resonance Frequency of Silver Island Films
MRS Proceedings, 2002ABSTRACTA simple method was demonstrated to tune surface plasmon resonance wavelength of silver island films by introducing an underlayer. The tunability can be much enhanced by varying the underlayer medium. In combination with the size effects of metallic islands the plasmon wavelength can be readily adjusted throughout the visible spectral regions ...
Gang Xu, Masato Tazawa, Ping Jin
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Effective optical constants of evaporated silver and copper island ultrathin films
Optical Interference Coatings, 2013The optical properties of copper and silver island films are quantified in terms of effective optical constants. Knowledge of these effective constants allows straightforward design calculations of island film based multilayer coatings.
Olaf Stenzel +2 more
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Optical properties of silver-island films having an overlayer of RhB dye
Applied Optics, 1987The spectra of silver-island films of different thicknesses and of RhB dye adsorbed silver films were recorded in the transmission mode using a photoacoustic spectrometer. The optical transmission spectra of discontinuous silver-island films show a different resonance peak in the spectra corresponding to the different sizes of the island particles. The
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